Home / 213,819.97-295,104.69-121,939.45

Finding the Fourth Proportional to 213,819.97, 295,104.69 and 121,939.45

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Solution

The fourth proportional to 213,819.97, 295,104.69 and 121,939.45 is: 168,295.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,819.97 : 295,104.69 = 121,939.45 : x
  2. Step 2: Convert to fraction form
    213,819.97/295,104.69 = 121,939.45/x
  3. Step 3: Cross multiply
    213,819.97x = 295,104.69 × 121,939.45
  4. Step 4: Simplify right side
    213,819.97x = 35,984,903,254.55
  5. Step 5: Solve for x
    x = 35,984,903,254.55/213,819.97
  6. Step 6: Final answer
    x = 168,295.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.